title: Monoclonal antibody-based serological methods for maize chlorotic mottle virus detection in China.
abstract: Maize chlorotic mottle virus (MCMV) infects maize plants and causes significant losses in corn production worldwide. In this study, purified MCMV particles were used as the immunogen to produce monoclonal antibodies (MAbs) and polyclonal antibodies (PAbs). Four murine MAbs (4B8, 8C11, 6F4, and 9G1) against MCMV were obtained through the hybridoma technology. The triple antibody sandwich enzyme-linked immunosorbent assay (TAS-ELISA), dot-immunobinding assay (DIBA), and immunocapture reverse transcription-polymerase chain reaction (IC-RT-PCR) using the MAb 4B8 were then developed for sensitive, specific, and rapid detection of MCMV in fields. MCMV could be detected in infected leaf crude extracts at dilutions of 1:327680, 1:64000, and 1:3276800 (w/v, g/ml) by TAS-ELISA, DIBA, and IC-RT-PCR, respectively. One hundred and sixty-one maize field samples showing virus-like symptoms and sixty-nine symptomless maize field samples from ten different provinces of China were collected and screened for the presence of MCMV using the established serological methods. A phylogenetic tree was constructed based on the full length CP genes and Chinese MCMV isolates formed one branch with Thailand isolates. The detection results demonstrated that MCMV is one of most prevalent viruses infecting maize in the Yunnan and Sichuan provinces of China.
authors.affiliation: State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China.
authors.forename: Jian-Xiang
authors.initials: JX
authors.lastname: Wu
authors.forename: Qiang
authors.initials: Q
authors.lastname: Wang
authors.forename: Huan
authors.initials: H
authors.lastname: Liu
authors.forename: Ya-Juan
authors.initials: YJ
authors.lastname: Qian
authors.forename: Yan
authors.initials: Y
authors.lastname: Xie
authors.forename: Xue-Ping
authors.initials: XP
authors.lastname: Zhou
mesh_terms: D000818:Animals; D000911:Antibodies, Monoclonal / Q000737:chemistry*; D002681:China; D004797:Enzyme-Linked Immunosorbent Assay; D006825:Hybridomas / Q000378:metabolism; D051379:Mice; D008807:Mice, Inbred BALB C; D010802:Phylogeny; D010935:Plant Diseases / Q000276:immunology*; D018515:Plant Leaves / Q000821:virology; D010942:Plant Viruses / Q000302:isolation & purification*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D017422:Sequence Analysis, DNA; D003313:Zea mays / Q000821:virology*
chemical_list: D000911:Antibodies, Monoclonal